The team investigates the increasing number of enormous black triangle reports in Sonora, California – what has become known as "Triangle Alley" – and analyzes night and rare daylight video footage of these objects to determine if they are top secret military aircraft or otherworldly spacecraft.
Underground Alien Bases
The team looks into the claims of undercover investigators and former military personnel about Dulce Base, an alleged alien facility that exists somewhere below a mesa near Dulce, New Mexico, where human-alien hybrid experiments are being performed and how the beings there came into deadly conflict with military personnel.
The Greys Conspiracy
The team investigates alien abduction cases from different parts of the world, each with alarmingly similar details involving alien-human hybrid experimentation and beings ufologists call "Greys" which are typically described as gray-skinned humanoids with large, black, almond-shaped eyes.
Underwater Alien Bases
The hunters delve into the mountain of reports from the Gulf Breeze, Florida UFO sighting wave of the early 1990s and then looks for possible connections to recent reports from Guantanamo Bay, Cuba of alleged Unidentified Submerged Objects (USOs) spotted rising from the ocean.
The team ventures to Germany and Poland to investigate rumors that the Third Reich had reverse engineered alien technology and may have produced a functional spacecraft, and how some of this technology was captured by the United States and helped jump start the U.S. space program. Military historian Igor Witkowski gives the team insight on "Die Glocke" (The Bell), an alleged top secret Nazi wunderwaffe.
The team investigates the phenomena of cattle mutilations, investigating a recent slaughter in Norwood, Missouri and following patterns of other cases, as well as sightings of black helicopters in Trinidad, Colorado which have led some to believe the military may be involved in the killings as part of a secret experiment.
Investigating so-called "trace cases", the team studies supposed physical evidence left behind after various UFO sightings, from a strange glass-like rock found in Poland, to an odd piece of metal a Missouri man claims to have found after it was dropped from a UFO.
Underwater Area 51
The investigators monitor the activity of the AUTEC (Atlantic Undersea Test and Evaluation Center), which is used by the U.S. Navy for underwater research, but the increasing reports of UFO and USO activity surrounding the facility have led to rumors the base is testing alien technology.
The team analyzes videos and eyewitness accounts that suggest a strong UFO presence at two of America's top research facilities; Brookhaven National Laboratory on New York's Long Island, and Lawrence Livermore Laboratory in Northern California.
The team investigates the phenomena of orbs – mysterious balls of light that appear to coincide with earthquakes – and travel to areas of orb activity in Arizona, Indiana, and Missouri where some witnesses claim the spheres are intelligent and communicate through dreams and premonitions.
The team tries to gather insight on the military's "First Response" protocols, the alleged recovery and cover-up procedures that are followed in case of a UFO incident. The investigation takes them to a claim of a military pursuit of multiple UFOs near Long Beach, California and a return visit to the supposed UFO crash in Needles, California in 2008.
The hunters delve into cases involving witness interrogation by mysterious agents known as the "Men in Black" (MIBs), who sometimes appear suddenly after a UFO event, exhibit unusual behavior, know facts that have not been divulged by witnesses, and threaten the lives of those involved with severe consequences unless they remain silent about their encounter.
The hunters investigate the Dugway Proving Ground, a remote military testing facility near Dugway, Utah, and examine the reports of UFO activity that has surrounded the site for the past 10 years – leading some UFO watchers to dub it "Area 52" and "The New Area 51."